#include<stdio.h>
void main(){
	char c,c2;
	printf("input two char:");
	c=getchar();
	fflush(stdin);
	printf("input another char:");
	c2=getchar();
	fflush(stdin);
	putchar(c);
	putchar(c2);
	putchar('\n');
	//printf("c=%c,c2=%c,c=%d,c2=%d",c,c2,c,c2);
}
